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【单选题】
包过滤防火墙工作在 ( )A.
网络层
B.
传输层
C.
会话层
D.
应用层
手机使用
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反馈参考答案：
举一反三
【简答题】十进制数[25.625] 10 的二进制数为______；
【简答题】十进制数86的8421BCD码为______，余3码为______；(11.25) 10 的二进制数为______，十六进制数为______。
【简答题】十进制数[12.75] 10 的二进制数为______；
【单选题】What is the style of the following paragraph development? Subject A--Point 1--Point 2--Point 3 --- Subject B --- Point 1 ---Point 2---Point 3
A.
Subject-by-subject pattern
B.
Point-by-point pattern
【简答题】What is the speaker's main point?
【单选题】There is no point arguing about what _____ the accident. The point is what to do with the victims of it. [ ]
A.
led to
B.
caused to
C.
accounted to
D.
resulted from
【单选题】What is the 'critical point' mentioned in the last paragraph?
A.
The point at which a computer is an exact copy of a human brain.
B.
When a computer can be made as creative as we are.
C.
When one computer itself is clever enough to design a better one.
D.
When computers destroy each other in an explosion.
【简答题】When point G is added, DEFG is square. What are the coordinates of point G?
【单选题】If A is the point (-4, 1) and B is the point (2, 1), what is the area of the circle which has AB as a diameter?
A.
3π
B.
6π
C.
9π
D.
12π
E.
36π
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